Dispensing pump



H. w. BARNES DISPENSING PUMP March Filed Sept. '7. 1922 I INVENTOR H/IROLD w. BHRNES.

Patented Mar. ll, 1924i.

HAROLD W. BARNES, OF INDIANAPOLIS, INDIANA.

DISPENSING PUMP.

Application filed September To aZZ whom it may concem:

Be it known that I, HAROLD l/V. BARNES, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Dispensing Pumps, of which the following is a specification.

This invention relates pumps and particularly that class adapted for quick installation in and removal from various types of liquid containers, such as cans, kegs, barrels, drums and the like, and one feature of the invention is the provision of a tapered sleeve exteriorly threaded for engagement with the opening in the receptacle from which it is desired to remove liquids.

A further feature of the invention is the provision of means in connection with the tapered sleeve for clamping the pump barrel whereby the pump may be adjusted for accommodating the same to receptacles of different depths.

A further feature of the invention is the provision in connection with the discharge spout of the pump of means for preventing undue dripping of the liquid at the completion of the pumping operation, and also for closing the spout to prevent undue evaporation of the liquid.

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawings,

Figure 1 is an elevation of the pump showing the sleeve in cooperative relation therewith,

Figure 2 is an enlarged sectional view as seen on line'22, Figure 1,

Figure 3 is an elevation of the clamping mechanism for securing the sleeve in adjusted position on the pump,

Figure 4 is an enlarged vertical sectional view of the means for preventing dripping of the liquid from the end of the pump spout showing the parts in closed position, and

Figure 5 is a similar view showing the parts in open position.

Referring to the drawings, 1 indicates the barrel of the pump which is preferably tubular, and 2 indicates a tapered sleeve for co-operation with the barrel portion of the pump for securing the same in receptacles from which liquid is to be removed. The

to dlspensing outer face of the sleeve 2 is provided with i force the cams 7, 1922. Serial No. 586,598.

threads 3 so that the sleeve may be introduced into and secured within openings of various diameters, and by lowering the sleeve into such opening until engaged with the threads and then imparting rotating movement to the sleeve it will be securely engaged with the opening into which it is entered.

After the sleeve has been properly engaged with the opening in the receptacle the barrel 1 of the pump is extended downwardly through the sleeve 2, and in order to accommodate the pump to receptacles of various depths a locking collar 4 is entered within the upper end of the sleeve 2, the orifice through the locking collar having a sliding fit with the exterior of the barrel 1, while the skirt portion 5 of the collar is provided with a plurality of vertically extending slits 6 so that said skirt may be swedged inwardly and caused to grip the barrel 1 with suliicient firmness to hold the barrel in fixed relation with the sleeve 2. To readily accomplish this result the exterior face of the lower portion of the skirt 5 is provided with a plurality of cams 7 which co-operate with similar cam faces 8 on the interior of the tapered sleeve 2, said cam and cam faces being in such relation to each other that when the locking collar is rotated to 7 against the cam faces 8, the skirt 5 will be forced inwardly and grip the barrel 1, but when turned to neutral position the cams will be out of engagement with the cam faces so that the barrel may be readily raised or lowered through the sleeve. The upper portion of the collar 4 is provided with a handle 9 by means of which the collar is rotated while a similar handle 10 is attached to the upper portion of the sleeve 2, said handles being in such relation with each other that they may both be readily grasped, and when pressure is applied, the handle 9 will be moved towards the handle 10 for rotating the collar 4 for locking the same into engagement with the barrel 1, and as the handle 10 is stationary, sufficient force may be readily applied to the handle 9 for operating the locking collar.

The locking collar 4 is held in position within the sleeve 2 by means of a cap 11 which is threaded onto the upper end of the sleeve 2, the wall of the sleeve having an elongated notch 12 through which the handle 9 extends.

Adjacent the upper end of the barrel 1 is a discharge spout 13 through which the liquid is discharged when the pump rod ll is operated. To prevent undue dripping of the liquid after completion 01"- the pumping operation and to event undue evaporation of volatile liquids, a nozzle 15 is connected to the outer end oi the spout 13 and preteraoly extends at right angles thereto, and in said nozzle is provided a plunger or valve 16 to which is attached an operating stem 17, said stem projecting through a packing gland 18 at the upper end of the nozzle, and for convenience or operating the plunger, a knob 19 is secured to the upper end of the stem 17. When liquid is to be pumped from a receptacle, the plunger 16 is elevated to the position snown in 1- igure 5 of the drawings, and for normally retaining the plunger in this position, aball 20 is entered in a bore 21 adjacent the upper end of the plunge 16, the ball being positioned and caused to enter a circumferential seat 22 in the interior wall of the nozzle 15 by entering a spring 23 in the bore 21 and in the rear of the ball 20. The lower end of the plunger 16 is formed into an inverted cone 24: so that any liquids adhering thereto will quickly drain to a common point and discharge therei rom, and to securely close the spout 13 the lower end of the nozzle 15 is provided with a seat 2:5 for engagement with the peripheral ed e of the lower end of the plunger 16.

in operation, after the sleeve 2 has been entered into the opening of a receptacle the handle 10 is grasped and the sleeve rotated until the threads engage the walls of the opening through which the sleeve is extended thereby securely fastening the sleeve to the receptacle. The locking collar 4t is then turned until the cams thereon are out of engagement with the cam faces of the sleeve, after which the barrel 1 of the pump is introduced through the collar and sleeve and lowered into the receptacle to the proper depth. The handle 9 is then operated (in the present instance to the left) for wedging the cams 7 against the cam faces 8 and there by swedging the split sections of the collar into engagement with the barrel with sufficient force to hold the barrel in fined engagement with the sleeve.

The knob 19 is then grasped and the plunger elevated to the position shown in Figure 5 of the drawings, the ball 20 entering the seat 22 and normally holding the plunger in elevated position. The plunger 1a is then operated to pump the prescribed quantity of liquid from the receptacle with which the pump is associated.

i-ifter the pumping operation is completed, downward pressure is applied to the knob 19 which will move the plunger 16 downwardly in the nozzle 15 and as said plunger closely fits within the nozzle any oils or the like adboring to the walls of thenozzle will be removed and incident to the plunger being forced into engagement with the seat 25 a further discharge or the liquid through the nozzle will be prevented and air will be excluded from the pump spout so as to obviate undue evaporation of the contents of the receptacle. After the plunger has been lowered its full distance the residue of liquid adhering thereto will quickly drain to the point formed by the conical end of the plunger and will readily discharge therefrom into the receptacle receiving the liquid from the pump and alter this discharge no further leakage will occur, consequently it will not be necessary to retain the liquid receiving receptacle below the spout any length oi time after the pumping operation is complete or to provide a second receptacle for receiving the drippings.

In view of the simplicity of this device it 7 pump with respect to the sleeve it may be used with receptacles oi varying depths.

And it will further be seen that by providing the nozzle structure at the outer end of the pump spout any residue of liquid may be readily removed to prevent dripping and the spout substantially completely closed for preventing undue evaporation of the liquid.

l-laving'thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. in a dispensing pump, the combination with a pump structure having a barrel, or" a sleeve through which said barrel is movable, a collar associated with the sleeve and means for distorting the collar to lock the sleeve in engagement with said barrel.

2. ln a dispensing pump, the combination with a pump barrel, of a hollow sleeve through which said barrel is movable, a retating collar within said sleeve, and means for causing parts of the collar to grip the barrel for locking the barrel in fixed relation with the sleeve. 1

3. The combination with a dispensing pump having a barrel portion, of a hollow sleeve slidable on said barrel portion and a collar within said sleeve, said collar having a split skirt portion to trictionally engage said barrel portion when the collar is rotated in one direction for holding the barrel portion in fixed engagement with the sleeve. 7

l. ln a dispensing pump, the combination with the barrel portion of the pump, of a hollow sleeve through which said barrel is extended, a collar carried by the sleeve and normally tree from engagement with the barrel, and means for moving the collar relative to the sleeve to cause the collar to positively engage the barrel for locking the barrel in fixed engagement with the sleeve.

5. In a dispensing pump, the combination with the barrel portion of the pump, of a hollow sleeve through which said barrel is extended, a rotating collar within said sleeve having a slitted skirt portion, cams on the exterior face of said skirt portion, cam faces on the interior of said sleeve, and means for rotating said collar for forcing the cam against said cam faces for forcing the slitted portions of the collar against the pump barrel. d 1

6. n a ispensing ump, a s eeve, a um barrel slidable theretlirough, a membei' car ried by the sleeve and normally free from engagement with the barrel, means for distorting said member into engagement with the barrel for locking the barrel in fixed relation with the sleeve, substantially as set forth.

1 In witness whereof, I have hereunto set my hand and seal at Indianapolis, Indiana, this 1st day of September, A. D. nineteen hundred and twenty-two.

HAROLD W. BARNES. [L. s.]

Witnesses:

M. L. SHULER, CAREY S. FRYE. 

